| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efc71fe1b10e10635687c7106f0b0e8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0fef86f15f05d4cd65a352ac900ceed
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A40-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05C3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0426
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0031
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0059
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0488
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05F5-008 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D9-00 |
| filingDate |
2012-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_784f307116f1916770759167c8375bf4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01db868b4f2fde07492c7c79337efc15 |
| publicationDate |
2014-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8663342-B2 |
| titleOfInvention |
Process for producing nitrogen-containing composition |
| abstract |
The invention provides a process comprising: a crystallization step of concentrating and crystallizing the ammonium salt of sulfuric acid from an aqueous solution that contains the ammonium salt of sulfuric acid; a solid-liquid separation step of solid-liquid separating the ammonium salt of sulfuric acid obtained in the crystallization step, and a crystallization mother liquid recycling step of recycling a crystallization mother liquid obtained in the solid-liquid separation step to at least one step selected from the crystallization step and one or more steps that precede the crystallization step, in which not all of the crystallization mother liquid is recycled. |
| priorityDate |
2010-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |